yeah i have heard the same thing. and i have a buddy who does it for a living. just dont leave it there too long, metal can develop a "memory" and then it can be harder to remove & the paint may chip.Wikdsvt said:I've used Dry Ice before and removed tiny dings.
When metal gets dinged it STRETCHES. so it is actually out of sync withthe metal around it.
I used a dry clothe and dry ice and "shrunk" the metal back to normal.
I know it sounds unbelivable, but it worked.
there is a ton more info